CA-125 Levels in Non-Hodgkin Lymphoma and Association with Clinical Parameters CA-125 is an important tumor marker known to increase in some abdominal benign and other intraabdominal malign conditions other than ovarian carcinoma. We aimed to determine whether CA-125 increases in the patients with non-Hodgkin lymphoma especially had abdominal involvement and the association between important markers in lymphoma such as B2-microglobulin and LDH, performance status, B symptoms stage and mortality. We studied patients who were admitted to our hospital between January 1996-April 1998, newly diagnosed, no prior chemotherapy or radiotherapy underwent. There were 23 males and 31 females (total 54 patients), median age was 61 (range: 18-77), median follow up duration of 13.5 months (range: 2-28). Physical examination and whole radiologic procedures for staging were done. There were 10 (4 women, 6 men) in stage I,16 (8 women, 8 men) in stage II, 17 (13 women, 4 men) in stage III and 11 (6 women, 5 men) in stage IV. (32-microglobulin, LDH and CA-125 levels were determined for each patient. CA-125 levels were (n=28) 109.4±27.9 U/ml and (n=26) 22.9+5.9 U/ml (p